refresh_group_list=function() {
  grouplist=$('#group-choice')[0];
  $('a.group-choice').each(function(idx,a) {
    $(a).parent().remove();
  });

  if (groups.count()==0) {
    $(grouplist).prepend('<li><a class="group-choice">Aucune groupe</a></li>');
    
  }
  else { 
    groups.each(function(idx,group) {
      $(grouplist).prepend('<li><a class="group-choice">'+group.name+'</a></li>');
    });

    $('a.group-choice').each(function(idx,a) {
      $(a).bind('click',on_group_choice_click);
    });
  }
}


/****************
 * Add group
 ****************/
on_show_add_group_modal=function(e) {
  $('#add_group_modal #add_group_name').focus();
}

on_valid_add_group_modal=function () {
  var name=$('#add_group_name')[0].value;
  if (name=='') {
    alert('Vous devez saisir un nom !');
    return;
  }
  if (groups[name]!==undefined) {
    alert('Ce groupe exite déjà !');
    return;
  }
  groups[name]=new Group(name);
  refresh_group_list();
  $('#add_group_modal').modal('hide');
  groups.save();
  view_group(groups[name]);
}

on_close_add_group_modal=function () {
  $('#add_group_name form')[0].reset();
}

/****************
 * Nav bars
 ****************/
on_group_choice_click=function(e) {
  view_group(groups[$(e.target).html()]);
}

/****************
 * View group
 ****************/
view_group=function(group) {
  $('#view-group h1').html(group.name);
  set_contributors(group);
  on_contributor_change();
  $('#view-group').css('display','block');
}

set_contributors=function(group) {
  $('#view-group #contributor option').remove();
  if(group.contributors.length==0) {
    $('#view-group #contributor').append('<option>Aucun participant</option>');
  }
  else {
    $(group.contributors).each(function(idx,c) {
      $('#view-group #contributor').append('<option value="'+c.name+'">'+c.name+'</option>');
    });
  }
}

on_contributor_change=function(e) {
  show_contributions(groups[$('#view-group h1').html()],$('#view-group #contributor')[0].value);
}

show_contributions=function(group,contributor_name) {
  var tbody=$($('#view-group #contributions tbody')[0]);
  tbody.html('');
  total=$($('#view-group #total-value')[0]);
  contributions=group.contributionsByContributorName(contributor_name);
  if (contributions.length==0) {
    tbody.append('<tr><td colspan=3>Aucune contributions</td></tr>');
    total.html('0,00 €');
  }
  else {
    sum=0;
    for (idx in contributions) {
      col_actions='<td><div class="btn-group" data-id="'+contributions[idx].id+'"><button type="button" class="btn btn-default contribution_edit_btn"><span class="glyphicon glyphicon-edit"></span></button><button type="button" class="btn btn-default contribution_delete_btn"><span class="glyphicon glyphicon-trash"></span></button></div></td>';
      tbody.append('<tr><td>'+contributions[idx].getTitle()+'</td><td>'+contributions[idx].cost+' €</td>'+col_actions+'</tr>');
      sum+=contributions[idx].cost;
    }
    total.html(sum+' €');
  }

  $('.contribution_delete_btn').bind('click',on_contribution_delete_btn_click);
  $('.contribution_edit_btn').bind('click',on_contribution_edit_btn_click);
}

/*********************
 * Add contributor
 *********************/
on_click_add_contributor_btn=function() {
  $('#add_contributor_modal #group_name')[0].value=$($('#view-group h1')[0]).html();
  $('#add_contributor_modal').modal('show');
}

on_show_add_contributor_modal=function(e) {
  $('#add_contributor_modal #add_contributor_name').focus();
}

on_valid_add_contributor_modal=function() {
  var group=groups[$('#add_contributor_modal #group_name')[0].value];
  var name=$('#add_contributor_name')[0].value;
  if (name=='') {
    alert('Vous devez saisir un nom !');
    return;
  }
  if (group.contributorByName(name)!=undefined) {
    alert('Un contributor porte déjà ce nom !');
    return;
  }
  var email=$('#add_contributor_email')[0].value;
  if (email=='') {
    alert('Vous devez saisir un email !');
    return;
  }
  if (group.contributorByEmail(email)!=undefined) {
    alert('Un contributor utilise déjà cet email !');
    return;
  }
  group.contributors.push(new Contributor(name,email));
  set_contributors(group);
  $('#add_contributor_modal').modal('hide');
  $('#add_contributor_name')[0].value='';
  $('#add_contributor_email')[0].value='';
  groups.save();

}

on_close_add_contributor_modal=function () {
  $('#add_contributor_name')[0].value='';
  $('#add_contributor_email')[0].value='';
}

on_click_del_contributor_btn=function() {
  contributor=$('#view-group #contributor')[0].value;
  question='Voulez-vous vraiment supprimer '+contributor+' ?';
  myconfirm(question,on_confirm_del_contributor,null,contributor);
}

on_confirm_del_contributor=function(contributor) {
  var group=groups[$($('#view-group h1')[0]).html()];
  group.removeContributor(contributor);
  set_contributors(group);
  groups.save();
}

/********************************
 * Add/edit/delete contribution
 ********************************/
on_show_add_contribution_modal=function(e) {
  var cs=$($('#add_contribution_modal #add_contribution_contributor_name')[0]);
  cs.html('');
  $('#view-group #contributor option').each(function(idx,option) {
    cs.append($(option).clone());
  });
  cs[0].value = $('#view-group #contributor')[0].value;
  $('#add_contribution_modal #add_contribution_title').focus();
}

on_click_add_contribution_btn=function() {
  $('#add_contribution_modal #group_name')[0].value=$($('#view-group h1')[0]).html();
  $('#add_contribution_modal #edit_id')[0].value='-1';
  $('#add_contribution_modal').modal('show');
}

on_valid_add_contribution_modal=function(e) {
  e.preventDefault();
  var group=groups[$('#add_contribution_modal #group_name')[0].value];
  var contributor_name=$('#add_contribution_contributor_name')[0].value;
  var contributor=group.contributorByName(contributor_name);
  if (contributor==undefined) {
    alert('Participant inconu !');
    return;
  }
  var title=$('#add_contribution_title')[0].value;
  if (title=='') {
    $('#add_contribution_title')[0].focus();
    alert('Vous devez saisir un titre !');
    return;
  }
  var cost=$('#add_contribution_cost')[0].value;
  if (cost=='') {
    $('#add_contribution_cost')[0].focus();
    alert('Vous devez saisir un coût !');
    return;
  }
  else if(!RegExp('^[0-9]*(,[0-9]{1,2})*$').test(cost)) {
    $('#add_contribution_cost')[0].focus();
    alert('Coût incorrect !');
    return;
  }
  cost=parseFloat(cost.replace(',','.'));

  var date=$('#add_contribution_date')[0].value;
  if (date!='') {
    if(!RegExp('^[0-3][0-9]\/[0-1][0-9]\/[0-2][0-9][0-9][0-9]$').test(date)) {
      $('#add_contribution_date')[0].focus();
      alert('Date incorrect !');
      return;
    }
    date=moment(date,'DD-MM-YYYY').toDate();
    if (jQuery.type(date)!='date') {
      alert('Date non-reconnu !');
      return;
    }
  }
  else {
    date=new Date();
  }

  if($('#add_contribution_modal #edit_id')[0].value=='-1') {
    group.addContribution(new Contribution(contributor,cost,title,date));
  }
  else {
    contribution_id=$('#add_contribution_modal #edit_id')[0].value;
    group.replaceContribution(contribution_id,new Contribution(contributor,cost,title,date));
  }
  show_contributions(group,contributor_name);
  $('#add_contribution_modal').modal('hide');
  $('#add_contribution_modal form')[0].reset();
  groups.save();
}

on_close_add_contribution_modal=function () {
  $('#add_contribution_modal form')[0].reset();
}

on_contribution_delete_btn_click=function(e) {
  var group=groups[$($('#view-group h1')[0]).html()];
  contribution_id=$($(e.target).parents('div')[0]).data('id');
  contribution=group.contributions[contribution_id];
  myconfirm('Etes-vous sûre de vouloir supprimer la participation '+contribution.getTitle()+' de '+contribution.contributor.name+' ?',on_confirm_contribution_delete,null,{'group':group,'contribution_id':contribution_id, 'contribution': contribution} );
}

on_confirm_contribution_delete=function(data) {
  delete data.group.contributions[data.contribution_id];
  groups.save();
  on_contributor_change();
}

on_contribution_edit_btn_click=function(e) {
  var group=groups[$($('#view-group h1')[0]).html()];
  $('#add_contribution_modal #group_name')[0].value=$($('#view-group h1')[0]).html();
  contribution_id=$($(e.target).parents('div')[0]).data('id');
  contribution=group.contributions[contribution_id];
  $('#add_contribution_modal #add_contribution_contributor_name')[0].value=contribution.contributor.name;
  console.log($('#add_contribution_modal #add_contribution_contributor_name')[0]);
  console.log(contribution.contributor.name);
  $('#add_contribution_modal #add_contribution_title')[0].value=contribution.getTitle();
  $('#add_contribution_modal #add_contribution_cost')[0].value=contribution.cost;
  $('#add_contribution_modal #add_contribution_date')[0].value=moment(contribution.date).format('DD/MM/YYYY');
  $('#add_contribution_modal #edit_id')[0].value=contribution_id;
  $('#add_contribution_modal').modal('show');
}



/********************
 * Clear local data
 ********************/
clear_local_data=function() {
  myconfirm('Etes-vous sûre de vouloir supprimer les données locales ?',on_confirm_clear_local_data);
}

on_confirm_clear_local_data=function(data) {
  localStorage.clear();
  location.reload();
}

/*********************
 * View balance
 *********************/

on_display_balance_btn_click=function(e) {
  group=groups[$($('#view-group h1')[0]).html()];
  display_balance(group);
}

display_balance=function(group) {
  bal=group.balance();
  tbody=$($('#display_balance_modal tbody')[0]);
  tbody.html('');
  sum=0;
  for (c in bal) {
    tbody.append('<tr><td>'+c+'</td><td>'+bal[c]+' €</td></tr>');
    sum+=bal[c];
  }
  $('#display_balance_modal #total-value').html(sum+' €');
  $('#display_balance_modal').modal('show');
}

/*********************
 * Remove group
 *********************/

on_remove_group_btn_click=function(e) {
  group=groups[$($('#view-group h1')[0]).html()];
  myconfirm('Etes-vous sûre de vouloir supprimer le group '+group.name+' ?',on_confirm_remove_group,null,group);
  
}

on_confirm_remove_group=function(group) {
  if(groups.removeGroup(group.name)) {
    groups.save();
    location.reload();
  }
  else {
    alert('Erreur en supprimant le groupe '+group.name+' :(');
  }
}


/*********************
 * Activate
 *********************/
$( document ).ready( function() {
  if(typeof(Storage)!=="undefined"){
    groups=new GroupList();
    groups.loadFromLocalStorage();
    refresh_group_list();
  }
  else {
    alert('Local storage not supported !');
  }

  $('#add_group_submit').bind('click',on_valid_add_group_modal);
  $("#add_group_modal").on('shown.bs.modal',on_show_add_group_modal);
  $("#add_group_modal").on('hidden.bs.modal',on_close_add_group_modal);
  $("#add_group_modal form").on('submit',on_valid_add_group_modal);

  $('#clear_local_data').bind('click',clear_local_data);

  $('#view-group #contributor').bind('change',on_contributor_change);

  $('#add_contributor_btn').bind('click',on_click_add_contributor_btn);
  $('#add_contributor_submit').bind('click',on_valid_add_contributor_modal);
  $("#add_contributor_modal").on('shown.bs.modal',on_show_add_contributor_modal);
  $("#add_contributor_modal").on('hidden.bs.modal',on_close_add_contributor_modal);
  $("#add_contributor_modal form").on('submit',on_valid_add_contributor_modal);

  $('#del_contributor_btn').bind('click',on_click_del_contributor_btn);

  $('#add_contribution_btn').bind('click',on_click_add_contribution_btn);
  $('#add_contribution_submit').bind('click',on_valid_add_contribution_modal);
  $("#add_contribution_modal").on('shown.bs.modal',on_show_add_contribution_modal);
  $("#add_contribution_modal").on('hidden.bs.modal',on_close_add_contribution_modal);
  $("#add_contribution_modal form").on('submit',on_valid_add_contribution_modal);

  $("#display_balance_btn").bind('click',on_display_balance_btn_click);

  $('#remove_group_btn').bind('click',on_remove_group_btn_click);
} );